crypto

func AesCTRXOR ¶

func AesCTRXOR(key, inText, iv []byte) ([]byte, error)

AES encryption algorithm interface Shi，TeemoGuo added

func CompareA1 ¶

func CompareA1(b []byte, A *ecdsa.PublicKey, S1 *ecdsa.PublicKey, A1 *ecdsa.PublicKey) bool

func CreateAddress ¶

func CreateAddress(b common.Address, nonce uint64) common.Address

Creates an ethereum address given the bytes and the nonce

func Decode ¶

func Decode(b string) []byte

Decode decodes a modified base58 string to a byte slice.

func Ecrecover ¶

func Ecrecover(hash, sig []byte) ([]byte, error)

func Encode ¶

func Encode(b []byte) string

Encode encodes a byte slice to a modified base58 string.

func FromECDSA ¶

func FromECDSA(priv *ecdsa.PrivateKey) []byte

FromECDSA exports a private key into a binary dump.

func FromECDSAPub ¶

func FromECDSAPub(pub *ecdsa.PublicKey) []byte

func GenerateKey ¶

func GenerateKey() (*ecdsa.PrivateKey, error)

func GenerateOneTimeKey ¶

func GenerateOneTimeKey(AX string, AY string, BX string, BY string) (ret []string, err error)

Generate OTA account interface

func GenerateOneTimePrivateKey2528 ¶

func GenerateOneTimePrivateKey2528(privateKey *ecdsa.PrivateKey, privateKey2 *ecdsa.PrivateKey, destPubA *ecdsa.PublicKey, destPubB *ecdsa.PublicKey) (retPriv1 *ecdsa.PrivateKey, retPriv2 *ecdsa.PrivateKey, err error)

func GenerteOTAPrivateKey ¶

func GenerteOTAPrivateKey(privateKey *ecdsa.PrivateKey, privateKey2 *ecdsa.PrivateKey, AX string, AY string, BX string, BY string) (retPub *ecdsa.PublicKey, retPriv1 *ecdsa.PrivateKey, retPriv2 *ecdsa.PrivateKey, err error)

GenerteOTAPrivateKey generates the privatekey for an OTA account using receiver's main account's privatekey Pengbo added, TeemoGuo revised

func Hex2Bytes ¶

func Hex2Bytes(str string) []byte

func HexToECDSA ¶

func HexToECDSA(hexkey string) (*ecdsa.PrivateKey, error)

HexToECDSA parses a secp256k1 private key.

func IntToPublicKey ¶

func IntToPublicKey(in ...*big.Int) []*ecdsa.PublicKey

IntToPublicKey converts Big int data structure to PublicKey data structure

func Keccak256 ¶

func Keccak256(data ...[]byte) []byte

Keccak256 calculates and returns the Keccak256 hash of the input data.

func Keccak256Hash ¶

func Keccak256Hash(data ...[]byte) (h common.Hash)

Keccak256Hash calculates and returns the Keccak256 hash of the input data, converting it to an internal Hash data structure.

func Keccak512 ¶

func Keccak512(data ...[]byte) []byte

Keccak512 calculates and returns the Keccak512 hash of the input data.

func LoadECDSA ¶

func LoadECDSA(file string) (*ecdsa.PrivateKey, error)

LoadECDSA loads a secp256k1 private key from the given file.

func ModInverse ¶

func ModInverse(a, n *big.Int) (ia *big.Int, ok bool)

func PubkeyToAddress ¶

func PubkeyToAddress(p ecdsa.PublicKey) common.Address

func PubkeyToRipemd160 ¶

func PubkeyToRipemd160(p *ecdsa.PublicKey) common.Address

func PublicKeyToInt ¶

func PublicKeyToInt(PublicKeys ...*ecdsa.PublicKey) []*hexutil.Big

PublicKeyToInt converts PublicKey data structure to Big int data structure and return outInt[0] as return value. storage structure is like ((x,y)(x,y)(x,y)(x,y)....)

func RandFieldElement2528 ¶

func RandFieldElement2528(rand io.Reader) (k *big.Int, err error)

cranelv Export randFieldElement2528

func RingSign ¶

func RingSign(M []byte, x *big.Int, PublicKeys []*ecdsa.PublicKey) ([]*ecdsa.PublicKey, *ecdsa.PublicKey, []*big.Int, []*big.Int, error)

RingSign is the function of ring signature Pengbo added, Shi,TeemoGuo revised

func Rsa_decrypt ¶

func Rsa_decrypt(random io.Reader, priv *rsa.PrivateKey, c *big.Int) (m *big.Int, err error)

RSA decryption algorithm interface Shi，TeemoGuo added

func Rsa_encrypt ¶

func Rsa_encrypt(c *big.Int, pub *rsa.PublicKey, m *big.Int) *big.Int

RSA encryption algorithm interface Shi，TeemoGuo added

func S256 ¶

func S256() elliptic.Curve

S256 returns an instance of the secp256k1 curve.

func SaveECDSA ¶

func SaveECDSA(file string, key *ecdsa.PrivateKey) error

SaveECDSA saves a secp256k1 private key to the given file with restrictive permissions. The key data is saved hex-encoded.

func SigToPub ¶

func SigToPub(hash, sig []byte) (*ecdsa.PublicKey, error)

func Sign ¶

func Sign(hash []byte, prv *ecdsa.PrivateKey) (sig []byte, err error)

Sign calculates an ECDSA signature.

This function is susceptible to chosen plaintext attacks that can leak information about the private key that is used for signing. Callers must be aware that the given hash cannot be chosen by an adversery. Common solution is to hash any input before calculating the signature.

The produced signature is in the [R || S || V] format where V is 0 or 1.

func ToECDSA ¶

func ToECDSA(d []byte) (*ecdsa.PrivateKey, error)

ToECDSA creates a private key with the given D value.

func ToECDSAPub ¶

func ToECDSAPub(pub []byte) *ecdsa.PublicKey

func ToECDSAUnsafe ¶

func ToECDSAUnsafe(d []byte) *ecdsa.PrivateKey

ToECDSAUnsafe blidly converts a binary blob to a private key. It should almost never be used unless you are sure the input is valid and want to avoid hitting errors due to bad origin encoding (0 prefixes cut off).

func ValidateSignatureValues ¶

func ValidateSignatureValues(v byte, r, s *big.Int, homestead bool) bool

ValidateSignatureValues verifies whether the signature values are valid with the given chain rules. The v value is assumed to be either 0 or 1.

func VerifyRingSign ¶

func VerifyRingSign(M []byte, PublicKeys []*ecdsa.PublicKey, I *ecdsa.PublicKey, c []*big.Int, r []*big.Int) bool

VerifyRingSign verifies the validity of ring signature Pengbo added, Shi,TeemoGuo revised